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Group Disease No Disease Total Group 1 X 100 154 Group 2 6 20 26 Group 3 24 52 76 Total 84 172 256 What
Group | Disease | No Disease | Total |
Group 1 | X | 100 | 154 |
Group 2 | 6 | 20 | 26 |
Group 3 | 24 | 52 | 76 |
Total | 84 | 172 | 256 |
What degrees of freedom should be used to conduct a chi-squared test of independence using this table?
a. 1
b. 6
c. 255
d. 2
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